TY  - BOOK
AU  - Bureau of Indian Standards
TI  - Dimensions for Centre Holes (IS : 2473 - 1975) Reaffirmed 1978
U1  - IS : 2473 - 1975 
PY  - 1982///
CY  - New Delhi
PB  - Bureau of Indian Standards
KW  - Indian Standard - IT
N1  - IS : 2473 - 1975
ER  -